Dear Yass,
normally I do not comment on someone's study goals, but now it is
too hard to resist.
ICA and GLM are completely different approaches answering completely
different research questions about brain function. Why compare the
respective results images directly? I cannot think of one useful way
to do that. What purpose does that serve? ICA results aren't really
activation maps to begin with, but higher dimensional structures
best explaining your data.
To me comparing ICA components with GLM activation maps makes as
much sense as comparing South African stock prices with the
reproduction habits of an amoeba.
Perhaps you have much more detailed comparison in mind that makes
sense, and then I apologize beforehand. Love to hear it though.
I'm sorry when I'm sounding pompous... I sincerely hope you can find
a way to get your explorations on the right track.
Good luck,
Bas
On 08/03/2012 12:55 PM, Yass. Jd. wrote:
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type="cite">
Dear all,
I am trying to compare
the GLM method with others such as ICA and Hybrid methods.
In order to do that, I would like to compare the activation
maps produced by these methods.
How can I can access the
results of SPM (SPM.mat) in a normalized and automatic way
to be compared with others activations with a similarity
index or something ? Knowing that ICA results will come from
another software …
I am a beginner in this
topic so any help is welcome !
Thank you very much !
Yass JD.
--
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Dr. S.F.W. Neggers
Division of Brain Research
Rudolf Magnus Institute for Neuroscience
Utrecht University Medical Center
Visiting : Heidelberglaan 100, 3584 CX Utrecht
Room B.01.1.03
Mail : Huispost B01.206, P.O. Box 85500
3508 GA Utrecht, the Netherlands
Tel : +31 (0)88 7559609
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E-mail : [log in to unmask]
Web : http://www.neuromri.nl/people/bas-neggers
: http://www.brainsciencetools.com (CEO)
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